Ontoom

Factor a number

Break it into prime factors and see every divisor.

Prime factors

360 = 2^3 × 3^2 × 5

24 divisors

1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360

Important: Local calculation. Numbers up to 1 trillion.

How to factor a number

Enter a positive integer: the tool lists the prime factorization (with exponents) and every divisor. Useful for LCM, GCD and school exercises. Cap: 1 trillion.

Frequently asked questions

What does factoring mean?
Writing the number as a product of primes, for example 12 = 2² × 3.
Do you show the divisors?
Yes. Besides prime factors, we list every positive divisor.
What is the largest number?
Up to 1,000,000,000,000 (1 trillion), so it stays instant in the browser.
Does the data leave my computer?
No. Factorization is local.

See also